Deathstroke has beaten Batman every time?

According to the wikipedia article on Deathstroke

I am not at all familiar with the Deathstroke character. My only exposure to him was as Slade in the Teen Titans animated series. Is the wikipedia article correct? Fanboyism aside, I remember what a huge deal it was when Bane broke Batman, because nobody beats the goddamn Batman.
Thanks in advance to any Deathstroke fans who can give an authoritative answer.

I feel almost certain I’ve read ones where Deathstroke won and ones where Batman won. No idea what issues, though, and who knows what they’re considering a “straight fight”.

One where Batman wasn’t prepared, duh!

A “straight fight” is one where you aren’t allowed to distract your opponent by tickling his balls.

It’s not really a big deal to beat Batman. He’s pretty weak

That might explain why the (soi-dissant) USMC close quarter combat manual I picked up in a used book store kept saying that in order to break a hold you should “grab, squeeze, and twist the opponent’s genitals in a VIOLENT AND FORCEFUL MANNER”.

They were very consistent with that capitalization.

I guess they were worried about guys grabbing, squeezing, and twisting in a gentle and sensuous manner.

Not that Batman would do that. If he did, though, he’d be prepared.